Hypothesis test for student math scores

Assignment Help Basic Statistics
Reference no: EM13111819

The mean math score for fifth grade students at Smart Elementary is 90 with a standard deviation of 8. The fifth grade students are tested each year to determine if the mean score remains the same. A random sample of 30 students are chosen from the classes this year and provide a sample mean score of 94. The null hypothesis Ho: m = 90, the alternative hypothesis H1: m =/= 90.

Using a 95% confidence level conduct the hypothesis test for the math scores.

Reference no: EM13111819

Questions Cloud

What would the response be from an off ganglion cell : You go from a lit room to a dark room. What would the response be from an OFF ganglion cell? Why so?
Formulating null and alternative hypotheses : Formulate the null and alternative hypotheses for a hypothesis test. Identify the population and describe how to select a random sample for a hypothesis test. State in clear terms the conclusion that should be given if the null hypothesis is rejec..
Information about formulating null and alternative hypothese : Formulate the null and alternative hypotheses for a hypothesis test. Identify the population and describe how to select a random sample for a hypothesis test. State in clear terms the conclusion that should be given if the null hypothesis is rejec..
Explain the major advantage of increasing compression ratio : The compression ratio of today's cars is so much higher than in cars of years past. What is the major advantage of increasing the compression ratio?
Hypothesis test for student math scores : The mean math score for fifth grade students at Smart Elementary is 90 with a standard deviation of 8. The fifth grade students are tested each year to determine if the mean score remains the same.
Describe the different methods that cells use : Describe the different methods that cells use to restrict proteins to specific regions of the plasma membrane. Is a membrane with many anchored proteins still fluid? Explain.
Find probability that their first offspring will be white : A mouse species has three phenotypes, black, brown and white. There are two genes responsible, and there is epistasis between the two genes. If two white mice mate, what is the probability that their first offspring will be white?
Question about catalytic converter : The catalytic converter on your automobile contains small amounts of a precious metal catalyst. Which of the following components would you expect to be decreased in your tailpipe emissions.
Hypothesis testing-american sugar producers association : The American Sugar Producers Association wants to estimate the mean yearly sugar consumption. A sample of 16 people reveals the mean yearly consumption to be 60 pounds with a standard deviation of 20 pounds. What is the value of the population mea..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Write matlab code for regression

Write matlab Code for regression. one paragraph discussion of the project comprising method used and conclusions: regression results

  Hypotheses and the decision rule

At a .10 level of significance, use Stat Tools (or Excel) to test the sponsors' hypothesis. State the null and the alternative hypotheses and the decision rule. Finally, discuss your findings.

  Determining weighted mean grade

Determine her weighted mean grade? What letter grade did she earn? (A, B, C, D or F).

  Illustrate a quantitative assessment of what our charts

Illustrate a quantitative assessment of what our charts would look like and what these new targets would do to our operations.

  Sampling and sampling distributions

The article can be on Descriptive Statistics, Probability and the Normal Distribution, Sampling and Sampling Distributions, Regression Analysis, or Time Series Forecasting.

  Statistics-monthly salaries of business graduates

Use these data to obtain a 90% confidence interval estimate for the mean starting monthly salary, µ, of all recent graduates with bachelor's degrees in marketing from this university.

  Probability of choosing home security

What is the probability all three of the selected homes have a security system?

  Decision tree and finding expected value

Rob Johnson is a product manager at Diamond Chemicals, which is considering whether to launch a new product line that will require it to build a new facility.

  Advantage of the repeated measures anova

One advantage of the repeated measures ANOVA is that it eliminates "individual differences" as a source of variability. Explain why there are no individual differences in the numerator and in the denominator of the F ratio.

  Test hypothesis-conclusion without conducting hypothesis

The following are average weekly inventory costs in thousands of dollars for two proposed inventory control policies. The values were obtained from independent replications of a simulation model of the system.

  Null and alternate hypothesis for the issue

In looking at your business, when and why would you want to use a one-sample mean test (either z or t) or a two-sample t-test? Create a null and alternate hypothesis for one of these issues. How would you use the results?

  Probability based on coin tossing experiment

A coin is flipped e times and heads (h) or tails (t) are recorded:

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd